After all, the combat-sports executive can’t understand why anyone would consider sales that have already reached $60 million – and he expects will easily surpass Mayweather’s previous box-office record of $72 million – a bad thing.

Sure, tickets are pricy for the Aug. 26 fight, where UFC lightweight champion McGregor (21-3 MMA, 9-1 UFC) crosses over to fight boxing great Floyd Mayweather (49-0 boxing) in 12-round boxing bout at T-Mobile Arena in Las Vegas. Want to see the pay-per-view in person? You’re going to dish out anywhere from $500 to $10,000 per seat. The event is far from a sellout, and based on the secondary market, demand isn’t exactly out of control.

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“I’m actually tired of hearing that question because right now we have over $60 million in the box office,” he told MMAjunkie during Thursday’s Mayweather media day and workout in Las Vegas. “Now, you tell me what part of that that remotely looks like ticket sales are slow.

“This isn’t the damn Rolling Stones concert. That’s the only thing that sells out in seconds.”

Instead, Ellerbe said, patience is required for tickets that cost so much. He said “every major CEO from every major company” is interested, and it takes business executives like them some time to plan out their trips and buy their seats.

“The fact of that matter is that we have $60 million – over $60 million – in the box office right now,” he said. “Which is double more than any other live gate that’s ever been done.”

Mayweather, who could bank up to $300 million for his night of work against McGregor, is understandably unconcerned with the ticket-sales stories.

“Our fight is doing unbelievable numbers,” Mayweather said. “When I say unbelievable, we’re up high in the numbers. The pay-per-view numbers will be unbelievable, and we will have a sold-out crowd. I’m not worried about that, at all.”